From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751971AbeEQNuq (ORCPT ); Thu, 17 May 2018 09:50:46 -0400 Received: from mx2.suse.de ([195.135.220.15]:39006 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751850AbeEQNuo (ORCPT ); Thu, 17 May 2018 09:50:44 -0400 Subject: Re: [PATCH] Revert "mm/cma: manage the memory of the CMA area by using the ZONE_MOVABLE" To: =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= , Michal Hocko Cc: Joonsoo Kim , "Aneesh Kumar K . V" , Tony Lindgren , Johannes Weiner , Laura Abbott , Marek Szyprowski , Mel Gorman , Michal Nazarewicz , Minchan Kim , Rik van Riel , Russell King , Will Deacon , Andrew Morton , Linus Torvalds , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20180517125959.8095-1-ville.syrjala@linux.intel.com> <20180517132109.GU12670@dhcp22.suse.cz> <20180517133629.GH23723@intel.com> From: Vlastimil Babka Openpgp: preference=signencrypt Autocrypt: addr=vbabka@suse.cz; prefer-encrypt=mutual; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSFWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmNvbT7CwZcEEwEKAEECGwMFCwkIBwMFFQoJCAsFFgIDAQAC HgECF4ACGQEWIQSpQNQ0mSwujpkQPVAiT6fnzIKmZAUCWi/zTwUJBbOLuQAKCRAiT6fnzIKm ZIpED/4jRN/6LKZZIT4R2xoou0nJkBGVA3nfb+mUMgi3uwn/zC+o6jjc3ShmP0LQ0cdeuSt/ t2ytstnuARTFVqZT4/IYzZgBsLM8ODFY5vGfPw00tsZMIfFuVPQX3xs0XgLEHw7/1ZCVyJVr mTzYmV3JruwhMdUvIzwoZ/LXjPiEx1MRdUQYHAWwUfsl8lUZeu2QShL3KubR1eH6lUWN2M7t VcokLsnGg4LTajZzZfq2NqCKEQMY3JkAmOu/ooPTrfHCJYMF/5dpi8YF1CkQF/PVbnYbPUuh dRM0m3NzPtn5DdyfFltJ7fobGR039+zoCo6dFF9fPltwcyLlt1gaItfX5yNbOjX3aJSHY2Vc A5T+XAVC2sCwj0lHvgGDz/dTsMM9Ob/6rRJANlJPRWGYk3WVWnbgW8UejCWtn1FkiY/L/4qJ UsqkId8NkkVdVAenCcHQmOGjRQYTpe6Cf4aQ4HGNDeWEm3H8Uq9vmHhXXcPLkxBLRbGDSHyq vUBVaK+dAwAsXn/5PlGxw1cWtur1ep7RDgG3vVQDhIOpAXAg6HULjcbWpBEFaoH720oyGmO5 kV+yHciYO3nPzz/CZJzP5Ki7Q1zqBb/U6gib2at5Ycvews+vTueYO+rOb9sfD8BFTK386LUK uce7E38owtgo/V2GV4LMWqVOy1xtCB6OAUfnGDU2EM7BTQRWXZsWARAAyS3vr9khnfXSX3zU v2JIH8zP/aIwjAlIeekU7RYeIamGNm2qL1O1ZxQm4LH73YQpfVFpZbBMA6/jo+X38D+6b+7i Ea4f8otSBwHfTuV2mcwmo9OZjcsTsN01lq1i4mxA6fThBLJr/KDzW+kfq6lxN9/mEmhDjGIx cGWXvYY2Aa+QWNcMsIcXAwQWDx4ATrBvVAC5ezsuJwidNYgdMZr/1667W4jdUdxaASwYxT7N 0rjbCfpvdEUbZ66+mGup+46su/ijlRlr1X8+4n4OYWz9AmRGe0pcCl2trZpWcxE3t2T9S0yR uMlCgEIU8edyGVtmhuDJ0PGzinlNYnUikdvJIfNHT0SkMdEeuwAnBArwEl+d35g6RnyQA0im fSTb/R6OiavZZzHm5ywrdFo0ZCcJi5cVM5YwPgh7hWtDVd3Wj644mbV1wXVcU2TyQPwG0D+m BARx9WEHmz2orqLZyGwolYrk/5VLuTv7N/bp9OkIVx5a+YwfNyalZvBbsR2Pu4cLVNaKHR80 4IrZI4cX26hy8Obsnuaex4homJLR2ACl/DhBGyqv4MNMwmkHxihv+q08fzKQEkXrK0UTssnW eUfB0oNmZteVxphgurn2f5OtasseGhbp7DvQnsK3t7JLhzN/qu4jtZ+udqrY41axBAthI6Z6 ShIddANj0Ly4T3u/Q4EAEQEAAcLBZQQYAQoADwUCVl2bFgIbDAUJAeEzgAAKCRAiT6fnzIKm ZLV4EACAu3CiyTMfJt8h85vKp86C/v1/UkcUeKwGyeVgXwdXOJH9U6uF25QCoeXd77qBb+7O Eksos+clgzz83WIP7R9VlfOg6NU5E+OBU1zpXpiUUwfK3n7lPnpfPN3iSVT8Qh55phuis4CZ PqqHbBh8FFh2wfJQzp69eQnkYlxADZ6S2/e6rUtaZQNWHUmNV3dbts1n6fAtWChQw6IOFQv0 OzAWSNAjzk/AhS1a1jEcOD4L1AHtbQty0a6ajhwayl0MQGjD380R48mV24TQgHrb+8qoXF6A K9MC0W1KZaHZlcng1ArxnhKbRrTMInH/B+YaSSomayAPdt9rfnXlhy/FSRMAdAsa6Ui9wG+S 8LyiV/EgMJzsTmQIJlF9plYd+G1QLQi8lP9C+lw6Wn92sJR5sQo719GUwXtozxOy5aVEfBy/ hIYgXNwKMQEymAkiJAHunTmGDL0OrFY37+TvO+8Z3AcqnV04pCDzLkmDgbsBNwsqCoHRtNSh Gx2mu0G1U19yuDlQK92M+d4Dfb43IMuoT2c+zdMmUGeZMPhKgGc3BDBJ2UQyn2VCaxpDPgmx 3x1zA7K5E/ZIqD5Oo71qTRRonRZ74w0JLDzgDSK7d9lLmtOobstclGT4hChSTblDuMGLFy8J dfyae8NugjBzvIomGBWOsmMGmCeB6tqPObIqLio3T8LBfAQYAQoAJgIbDBYhBKlA1DSZLC6O mRA9UCJPp+fMgqZkBQJaL/NjBQkFs4vNAAoJECJPp+fMgqZk50AQALKEAzCj6kLU6KH7dUZY 16M74NCtpaMDO5/4Shwu+oS8H//b29GHtZVVGudfwBNmuIRSSxdpJkLsmqoLLEQTCzs2szH1 r5+uOiZTuKbgx2HJNaCqoHuotPSOdoVsKg27UxbkJraqSNyzgex0kKNO8HQltdvF20MXvPFu IKc6/Y/NTWQqaamXQBZA6HoSQKfuJmM0zQy3SWdcuz79K2Q4ftR2VNuu8UYB0bfTD7LCTguP PpYC0ePRFmYuiMP5T8DA9NKYiN+71RtcAQTJM8WTidJQ3gaBG1s3kiyqBoqQvkLFExUOBTDi /qukcTh/deKpfaUSIrX+JbrlFIFcwQ0Ql3bAE24hu1nRkFiBSPcoDdDS7Iu3MOwZik3SL6ZH qGo/KlmKiqTyCAs0WgOHnzXeX18/sS048NuOCwqfjn5cbDdbThpX+vRoWBV/rrYMFPgHCigK Ertp0r/zjPaqFHtdxvChwmbTvu44ddRvcCR/3v1zmeUAtxw6guSlvmVDzLwr35czpGrbcydq FPbL9fuTVKAXvkmKzuY0ye5tmJAsyYqgV5l+jaGt6oFEGFj5XZQvO6ic5lmjTHz9b6lUg8at uInmlw5eLxByeMA81R3sJvNbtGfCcqQfVkJAn2S4RYpDtAKI7QM+ydrdH3STBRaC1IuD0YWr A3XDrKOXTZil3g8D Message-ID: <6b9ad7af-6c7c-ebd8-1dc5-c34db177fdf7@suse.cz> Date: Thu, 17 May 2018 15:50:36 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180517133629.GH23723@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/17/2018 03:36 PM, Ville Syrjälä wrote: > On Thu, May 17, 2018 at 03:21:09PM +0200, Michal Hocko wrote: >> On Thu 17-05-18 15:59:59, Ville Syrjala wrote: >>> From: Ville Syrjälä >>> >>> This reverts commit bad8c6c0b1144694ecb0bc5629ede9b8b578b86e. >>> >>> Make x86 with HIGHMEM=y and CMA=y boot again. >> >> Is there any bug report with some more details? It is much more >> preferable to fix the issue rather than to revert the whole thing >> right away. > > The machine I have in front of me right now didn't give me anything. > Black screen, and netconsole was silent. No serial port on this > machine unfortunately. Could you send the .config and more info about the machine, e.g. /proc/zoneinfo with the patch reverted, etc., the usual stuff when reporting a bug? Thanks.